{{ $section := (index (findRE "[^/]+.*?" .Page.RelPermalink) 0) }}
{{ $currentVersion := (index (findRE "[^/]+.*?" .Page.RelPermalink) 1) }}
{{ $filters := .Get "filters" | default "" }}
{{ $filterArr := split $filters ", "}}
{{ $tagTaxonomy := print $section "/" $currentVersion "/tags" }}

<ul>
{{ range where $.Site.RegularPages.ByTitle "Section" $section }}
  {{ $title := cond (isset .Page.Params "list_title") (replaceRE `\ function` "" .Page.Params.list_title) (replaceRE `\ function` "" .Title) }}
  {{ $deprecated := isset .Page.Params "deprecated" }}
  {{ $removed := isset .Page.Params "removed" }}
  {{ $tagList := index .Page.Params $tagTaxonomy | default (slice "") }}

  {{ if ne $filters "" }}
    {{ if gt (len (intersect $filterArr (index .Page.Params $tagTaxonomy))) 0}}
      {{ if and (in .RelPermalink (print $section "/" $currentVersion "/")) (in .Title "() function")  }}
        <li>
          <a href="{{ .RelPermalink }}">{{ $title }}</a>{{ if $deprecated }} <em style="opacity:.35">– (deprecated)</em>{{ end }}
        </li>
      {{ end }}
    {{ end }}
  {{ else }}
    {{ if and (in .RelPermalink (print $section "/" $currentVersion "/")) (in .Title "() function")  }}
      <li class="filter-item visible" data-tags='{{ replaceRE "/" "-" (delimit (apply $tagList "urlize" ".") " ") }}'>
        <a href="{{ .RelPermalink }}">{{ $title }}</a>
        {{ if $removed }} <em style="opacity:.35">– (removed)</em>
        {{ else if $deprecated }} <em style="opacity:.35">– (deprecated)</em>{{ end }}
      </li>
    {{ end }}
  {{ end }}
{{ end }}
</ul>